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CHAPTER 5: WEB MANAGEMENT
FIGURE 5-13. PARAMETERS SCREEN
Tx Interval: The switch periodically transmits LLDP frames to its neighbors to keep the network discovery information up-to-date. The
interval between each LLDP frame is determined by the Tx Interval value.
Tx Hold: Each LLDP frame contains information about how long the information in the LLDP frame will be considered valid. The LLDP
information valid period is set to Tx Hold multiplied by Tx Interval seconds.
Tx Delay: If some configuration is changed (e.g. the IP address), a new LLDP frame is transmitted, but the time between the LLDP frames will
always be at least the value of the Tx Delay seconds. Tx Delay cannot be larger than 1/4 of the Tx Interval value.
Reinit Delay: When a port is disabled, LLDP is disabled or the switch is rebooted, an LLDP shutdown frame is transmitted to the neighboring
units, signaling that the LLDP information isn’t valid anymore. Tx Reinit controls the amount of seconds between the shutdown frame and a
new LLDP initialization.
FIGURE 5-14. PORT LLDP STATE SCREEN
LLDP State
Select LLDP mode here. The modes here available here include:
Rx and Tx: The switch will send out LLDP information, and will analyze LLDP information received from neighbors.
Rx only: The switch will not send out LLDP information, but LLDP information from neighbor units is analyzed.
Tx only: The switch will drop LLDP information received from neighbors, but will send out LLDP information.
Disabled: The switch will not send out LLDP information, and will drop LLDP information received from neighbors.
